MY TRUCK MAKES A SHHHH SOUND WHEN I ACCELERATE THE AIR PEDAL.?

1995 Chevrolet S-10 • 64,000 miles

I had my catalytic converter checked that's not it, plus my truck jerks if I accelerate to fast also I can press the air pedal all the way down and it wont speed up at all, I checked my transmission, it switch gears my belt is good. So, over all I hear the "sHHHHH" sound only when I accelerate the air pedal, and when I accelerate fast from stop position it wont move fast it will climb RPMS slow.

Sounds like a gross vacuum leak actually, something intake side or brake booster. Those are the biggest lines you have in the system ( 1/4 ) some larger. Especially if its leaking to the booster that will cause a whole host of issues. If vacuum is dropping in the system it also could be shutting down the fuel pressure regulator which would allow more fuel into the rail under hard acceleration.